fix(mobile): stop calling removed identity clear_badges route on foreground

[dylanjeffers]

Problem

Signed-in mobile builds log this every time the app comes to the foreground:

[SyntaxError: JSON Parse error: Unexpected character: <]

It shows up on Android 16 (RN 0.79.5), the 1.5.186 RC on a Saga (Android 14), and iOS 26.5 (RN 0.81.6, #14642), so it isn't tied to the RN version.

Cause

useResetNotificationBadgeCount runs on every foreground. It calls audiusBackend.clearNotificationBadges, which POSTs to identityservice.audius.co/notifications/clear_badges and then calls .json() on the response. #14207 removed that route from identity-service on 2026-04-30, so Express now returns its HTML 404 page:

$ curl -X POST https://identityservice.audius.co/notifications/clear_badges
<!DOCTYPE html> ... <pre>Cannot POST /notifications/clear_badges</pre>   -> 404 text/html

The catch passes the bare error to console.error, which produces the log line above.

Evidence

I foregrounded the signed-in iOS 26.5 release build on a simulator and read CFNetwork logs from the unified log:

22:28:43.627 [C530 ... url: https://identityservice.audius.co/notifications/clear_badges]
22:28:43.629 Task <4088> setting up Connection 530
22:28:43.793 Task <4088> received response, status 404
22:28:43.795 [com.facebook.react.log:javascript] [SyntaxError: JSON Parse error: Unexpected character: <]

Both earlier occurrences that session (17:17:04 and 17:18:05) were also a 404 from identity, 2 ms before the error. Each one came right after UIKit cleared the app's deactivation reasons. On iOS, useEnterForeground also fires on inactive -> active (Control Center, the notification shade, the app switcher), so the "about once a minute" pattern was how often the app was re-activated, not a timer. In the same session, a process that stayed in the foreground for 5 hours made no 404s and logged no errors.

clear_badges is the only identity route in AudiusBackend that no longer exists. I checked every other path it calls against identity-service/src/routes.

Fix

• Remove the dead clear_badges request and audiusBackend.clearNotificationBadges. It had no other callers.
• Keep clearing the local badge (PushNotifications.setBadgeCount(0)) on foreground.

The server-side PushNotificationBadgeCounts.iosBadgeCount is now reset to 0 by pedalboard's notification_seen listener (apps/notifications/src/notificationSeenListener.ts) when notifications are marked seen. This PR doesn't change server behaviour: the reset on app open has already been gone since #14207.

Testing

• ESLint passes on the changed files. tsc shows no errors in the changed files.
• I did not rebuild the app to watch the log line disappear. The request is removed outright, and the repro above was deterministic.

🤖 Generated with Claude Code

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